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Exhaust passage control valve
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Patent number 7,310,942
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Issue date Dec 25, 2007
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Chuo Hatsujo Kabushiki Kaisha
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Hiroyuki Shiga
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Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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1722853
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Patent number 1,722,853
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Issue date Jul 30, 1929
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B24 - GRINDING POLISHING
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1402755
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Patent number 1,402,755
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Issue date Jan 10, 1922
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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1308961
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Patent number 1,308,961
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Issue date Jul 8, 1919
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B24 - GRINDING POLISHING
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1234443
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Patent number 1,234,443
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Issue date Jul 24, 1917
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B24 - GRINDING POLISHING
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1062248
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Patent number 1,062,248
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B24 - GRINDING POLISHING
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1054208
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Patent number 1,054,208
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B24 - GRINDING POLISHING
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968726
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Patent number 968,726
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Issue date Aug 30, 1910
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B24 - GRINDING POLISHING
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880695
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Patent number 880,695
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B24 - GRINDING POLISHING
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819021
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Patent number 819,021
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B24 - GRINDING POLISHING
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760834
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B24 - GRINDING POLISHING
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502883
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B24 - GRINDING POLISHING
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207394
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Patent number 207,394
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Issue date Aug 27, 1878
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B24 - GRINDING POLISHING